This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 10 |
| 4 | 20 |
| 5 | 39 |
| 6 | 63 |
| 7 | 100 |
| 8 | 144 |
| 9 | 205 |
| 10 | 275 |
| 11 | 366 |
| 12 | 468 |
| 13 | 595 |
| 14 | 735 |
| 15 | 904 |
| 16 | 1088 |
| 17 | 1305 |
| 18 | 1539 |
| 19 | 1810 |
| 20 | 2100 |
| 21 | 2431 |
| 22 | 2783 |
| 23 | 3180 |
| 24 | 3600 |
| 25 | 4069 |
| 26 | 4563 |
| 27 | 5110 |
| 28 | 5684 |
| 29 | 6315 |
| 30 | 6975 |
| 31 | 7696 |
| 32 | 8448 |
| 33 | 9265 |
| 34 | 10115 |
| 35 | 11034 |
| 36 | 11988 |
| 37 | 13015 |
| 38 | 14079 |
| 39 | 15220 |
| 40 | 16400 |
| 41 | 17661 |
| 42 | 18963 |
| 43 | 20350 |
| 44 | 21780 |
| 45 | 23299 |